[PATCH] Remove stale iseries global

Will Schmidt will_schmidt at vnet.ibm.com
Wed Apr 19 05:02:17 EST 2006


On Tue, 2006-04-18 at 19:54 +0200, Michael Ellerman wrote:
> On Tue, 2006-04-18 at 12:31 -0500, Will Schmidt wrote:
> > On Tue, 2006-04-18 at 11:25 -0500, Olof Johansson wrote:
> > > Hi,
> > > 
> > > Not even the iSeries maintainer seems to have access to this legendary
> > > piranha simulator. It adds a bit of ugliness in the common time init
> > > code, and if it's no longer used we might as well be done with it and
> > > remove the bloat.
> > 
> > Yes, the piranha tools are no longer used with linux.   I see no reason
> > why this needs to stay.  
> 
> So can we get rid of this from head_64.S as well? Or is that a different
> debugger?

It's likely the same (piranha) debugger.  I'm not aware of any other
debuggers that would be involved here.

What I dont know is if this offset to the mschunks_map array is also
used by the hypervisor for some non debug purposes.   If iSeries
continues to work without it, then it can probably go too.

Just be sure that PPC_EARLY_DEBUG_ISERIES will continue to work for
getting info out of the system.  :-)

>         /*
>          * At offset 0x28 and 0x30 are offsets to the mschunks_map
>          * array (used by the iSeries LPAR debugger to do translation
>          * between physical addresses and absolute addresses) and
>          * to the pidhash table (also used by the debugger)
>          */
>         .llong mschunks_map-KERNELBASE
>         .llong 0        /* pidhash-KERNELBASE SFRXXX */
> 
> cheers
> 




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